CN106269821A - A kind of processing method of corn straw - Google Patents
A kind of processing method of corn straw Download PDFInfo
- Publication number
- CN106269821A CN106269821A CN201610690675.2A CN201610690675A CN106269821A CN 106269821 A CN106269821 A CN 106269821A CN 201610690675 A CN201610690675 A CN 201610690675A CN 106269821 A CN106269821 A CN 106269821A
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- China
- Prior art keywords
- corn straw
- straw
- corn
- weight ratio
- minute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010902 straw Substances 0.000 title claims abstract description 50
- 240000008042 Zea mays Species 0.000 title claims abstract description 49
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 49
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 48
- 235000005822 corn Nutrition 0.000 title claims abstract description 48
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 241000190967 Rhodospirillum Species 0.000 claims abstract description 16
- 239000012531 culture fluid Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000011081 inoculation Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229940041514 candida albicans extract Drugs 0.000 claims description 7
- 235000019991 rice wine Nutrition 0.000 claims description 7
- 239000012138 yeast extract Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 28
- 239000011651 chromium Substances 0.000 abstract description 20
- 239000010949 copper Substances 0.000 abstract description 20
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052793 cadmium Inorganic materials 0.000 abstract description 8
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052804 chromium Inorganic materials 0.000 abstract description 8
- 229910052802 copper Inorganic materials 0.000 abstract description 8
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- 239000002689 soil Substances 0.000 abstract description 7
- 238000001179 sorption measurement Methods 0.000 abstract description 7
- 238000005065 mining Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 4
- 210000000582 semen Anatomy 0.000 description 8
- 238000000855 fermentation Methods 0.000 description 6
- 230000004151 fermentation Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 238000000184 acid digestion Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The present invention relates to agricultural crop straw applied technical field, it is specifically related to the processing method of a kind of corn straw, corn straw after this process is used for repairing coal mining district contaminated soil, it is as follows that this corn straw processes step, by corn straw smashing, expanded, with culture fluid combined inoculation rhodospirillum bacterium solution, constant temperature culture 4 hours at 36 DEG C, can use, corn straw after process has stronger adsorption to copper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni), is particularly suited for repairing coal mining district contaminated soil.
Description
Technical field
The present invention relates to agricultural crop straw applied technical field, be specifically related to the processing method of a kind of corn straw, at this
Corn straw after reason is used for repairing coal mining district contaminated soil.
Background technology
The maize sown area of China has about 300,000,000 mu, is distributed in about 24 provinces, municipalities and autonomous regions, wherein Heilungkiang, Jis
Woods, Liaoning, Hebei, Shandong, Shanxi, Henan, Shaanxi, Sichuan, Guizhou, Yunnan, Guangxi etc. are main province, district, and Semen Maydis is to be made for raising
Material is grain, the warp of master, raises dual-purpose crop, and corn straw is also the important resources of production of work, agricultural production, current corn straw master
Pulverize and make ensilage use, the straw of the main milking maturity extremely cured ripe early stage in latter stage at Semen Maydis seed in source of ensilage,
As for Semen Maydis cured ripe after straw feeding effect poor, currently without preferable processing method, be typically all by burning disposal,
In every the time when autumn turns into winter, corn straw burns contaminated air and often becomes the target of everyone.
Rhodospirillum is lived in the mud in lake, pond, has and improves aquaculture ecological environment, reduces ammonia nitrogen, BOD work
With, have various equivalent modifications rhodospirillum at present and purify the organic wastewater of high concentration, to reach to protect environment, eliminate
The purpose polluted, there are no related application in contaminated soil processes.
Summary of the invention
It is an object of the invention to provide the processing method of a kind of corn straw, this process with Semen Maydis cured ripe after straw make
Processing for fermenting raw materials, the corn straw after process has stronger adsorption to copper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni),
It is particularly suited for repairing coal mining district contaminated soil.
It is as follows that this corn straw processes step:
Corn stalk powder is broken to 120-130 mesh, adds in vacuum tank, under the constant temperature of 53 DEG C, set negative pressure-0.35MPa, protect
After holding 3-5 minute, set malleation 0.22 MPa, keep 10-12 minute, again set negative pressure-0.18MPa, keep 3-5 minute
After, set malleation 0.33MPa, keep 1-2 minute, obtain expanded after corn straw；
After being mixed by the weight ratio of 1:5-8 with culture fluid by corn straw after expanded, regulate PH to 6.2, by the weight ratio of 10%
Inoculation rhodospirillum bacterium solution, constant temperature culture 4 hours at 36 DEG C, can use；
Wherein, culture fluid is mixed to get by the weight ratio of 1:0.02:0.02:8-10 by rice wine, Sal, yeast extract, water.
The present invention using Semen Maydis cured ripe after straw as raw material,
During use, by laterally or longitudinally digging groove after pending plot shallow plowing 18-20cm, ditch groove depth is identical with the degree of depth of ploughing shallowly, ditch
Groove width 8-10cm, groove pitch is 60-70cm, and the corn straw after processing is executed and spilt in groove, and executing and spilling thickness is 12-
15cm, covers groove with transparent membrane, makes corn straw continue continuing fermentation 10 days in groove, to ground during continuing fermentation
Block is sprinkled water, and keeping plot humidity is 58-62%.
Semen Maydis cured ripe after straw wide material sources, current utilizability is extremely low, mainly through burning disposal, to air pollution relatively
By force, the present invention to Semen Maydis cured ripe after crushed stalk expanding treatment, inoculation rhodospirillum bacterium be also carried out fermentation, during fermentation Semen Maydis
Straw heavy metal copper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni) have extremely strong adsorption, rice wine, Sal, yeast extract, water press
The weight ratio of 1:0.02:0.02:8-10 be mixed to get rhodospirillum culture fluid can significantly extend rhodospirillum exponential phase ease up
Slow trophophase, makes the adsorption of corn straw fully be extended, at rhodospirillum exponential phase corn straw adsorption
Reaching strong, absorption duration was up to 8 hours the most by force, served rhodospirillum to enter slow trophophase, and now corn straw still has suction
Attached effect, but adsorption is more slow, and lag phase, duration was up to 7 days, absorbed into the period of saturation, the period of saturation after 7 day lag phase
Corn straw there is adsorption hardly, after corn straw absorbs into the period of saturation, recyclable be dried, to absorption a huge sum of money
Genus extracts further, reclaims, utilizes.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be described:
Embodiment 1,
Corn stalk powder is broken to 120 mesh, adds in vacuum tank, under the constant temperature of 53 DEG C, set negative pressure-0.35MPa, keep 3
After minute, set malleation 0.22 MPa, keep 10 minutes, again set negative pressure-0.18MPa, after keeping 3 minutes, set malleation
0.33MPa, keeps 1 minute, obtain expanded after corn straw；
After corn straw after expanded is mixed by the weight ratio of 1:5 with culture fluid, regulate PH to 6.2, connect by the weight ratio of 10%
Plant rhodospirillum bacterium solution, constant temperature culture 4 hours at 36 DEG C, can use；
Wherein, culture fluid is mixed to get by the weight ratio of 1:0.02:0.02:8 by rice wine, Sal, yeast extract, water.
Embodiment 2,
Corn stalk powder is broken to 125 mesh, adds in vacuum tank, under the constant temperature of 53 DEG C, set negative pressure-0.35MPa, keep 4
After minute, set malleation 0.22 MPa, keep 11 minutes, again set negative pressure-0.18MPa, after keeping 4 minutes, set malleation
0.33MPa, keeps 1.5 minutes, obtain expanded after corn straw；
After corn straw after expanded is mixed by the weight ratio of 1:7 with culture fluid, regulate PH to 6.2, connect by the weight ratio of 10%
Plant rhodospirillum bacterium solution, constant temperature culture 4 hours at 36 DEG C, can use；
Wherein, culture fluid is mixed to get by the weight ratio of 1:0.02:0.02:9 by rice wine, Sal, yeast extract, water.
Embodiment 3,
Corn stalk powder is broken to 130 mesh, adds in vacuum tank, under the constant temperature of 53 DEG C, set negative pressure-0.35MPa, keep 5
After minute, set malleation 0.22 MPa, keep 12 minutes, again set negative pressure-0.18MPa, after keeping 5 minutes, set malleation
0.33MPa, keeps 2 minutes, obtain expanded after corn straw；
After corn straw after expanded is mixed by the weight ratio of 1:8 with culture fluid, regulate PH to 6.2, connect by the weight ratio of 10%
Plant rhodospirillum bacterium solution, constant temperature culture 4 hours at 36 DEG C, can use；
Wherein, culture fluid is mixed to get by the weight ratio of 1:0.02:0.02:10 by rice wine, Sal, yeast extract, water.
Randomly choose Huainan Mining Area soil, gather 0-20cm topsoil and be analyzed, use multidraw to be mixed into a generation
The method of table sample, each representative sample finally samples 1kg, after pedotheque is adopted back, mixes at once, treats after air-drying, pulverize, sieving
Surveying, analysis project is copper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni), and the mensuration of heavy metal in soil full dose uses three acid digestions
Extraction sample preparation, measures copper (Cu) in liquid to be measured, cadmium (Cd), chromium (Cr), nickel (Ni) content, result with plasma spectroscopy (ICP)
Such as following table:
| Cu(mg/kg) | Cd(mg/kg) | Cr(mg/kg) | Ni(mg/kg) |
| 80.36 | 12.99 | 135.68 | 70.14 |
Being ploughed shallowly by sampling site after 20cm laterally digging groove, ditch groove depth is identical with the degree of depth of ploughing shallowly, and ditch groove width 10cm, groove pitch is
60cm, the corn straw after processing executes and spills in groove, and executing and spilling thickness is 15cm, executes and spills groove after end with transparent membrane
Covering, make corn straw continue continuing fermentation 10 days in groove, sprinkle water to plot during continuing fermentation, holding plot humidity is
60%。
Corn stalk powder is broken to 120 mesh, adds in vacuum tank, under the constant temperature of 53 DEG C, set negative pressure-0.35MPa, keep 3
After minute, set malleation 0.22 MPa, keep 10 minutes, again set negative pressure-0.18MPa, after keeping 3 minutes, set malleation
0.33MPa, keeps 1 minute, obtain expanded after corn straw；
Corn straw after expanded is mixed by the weight ratio of 1:0.02:0.02:8-10 with by rice wine, Sal, yeast extract, water
Press the weight ratio mixing of 1:5 to culture fluid after, regulating PH to 6.2, the weight ratio by 10% inoculates rhodospirillum bacterium solution, at 36 DEG C
After constant temperature culture 4 hours, corn straw is applied in groove, after 8 hours, measure in liquid to be measured by identical sampling, measuring method
Copper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni) content, result such as following table:
| Cu(mg/kg) | Cd(mg/kg) | Cr(mg/kg) | Ni(mg/kg) |
| 69.62 | 7.03 | 128.40 | 65.17 |
7th day, measure copper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni) content in liquid to be measured, result by identical sampling, measuring method
Such as following table:
| Cu(mg/kg) | Cd(mg/kg) | Cr(mg/kg) | Ni(mg/kg) |
| 49.33 | 0.25 | 11.09 | 58.24 |
9th day, measure copper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni) content in liquid to be measured, result by identical sampling, measuring method
Such as following table:
| Cu(mg/kg) | Cd(mg/kg) | Cr(mg/kg) | Ni(mg/kg) |
| 49.328 | 0.249 | 11.084 | 58.236 |
Claims (3)
1. the processing method of a corn straw, it is characterised in that it is as follows that this corn straw processes step:
By corn straw smashing, add in vacuum tank, under the constant temperature of 53 DEG C, set negative pressure-0.35MPa, keep 3-5 minute
After, set malleation 0.22 MPa, keep 10-12 minute, again set negative pressure-0.18MPa, after keeping 3-5 minute, set malleation
0.33MPa, keeps 1-2 minute, obtain expanded after corn straw；
After being mixed by the weight ratio of 1:5-8 with rhodospirillum culture fluid by corn straw after expanded, regulate PH to 6.2, by 10%
Weight ratio inoculation rhodospirillum bacterium solution, constant temperature culture 4 hours at 35-36 DEG C, can use.
The processing method of a kind of corn straw the most according to claim 1, it is characterised in that
Corn stalk powder is broken to 120-130 mesh.
The processing method of a kind of corn straw the most according to claim 1, it is characterised in that
Rhodospirillum culture fluid is mixed to get by the weight ratio of 1:0.02:0.02:8-10 by rice wine, Sal, yeast extract, water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610690675.2A CN106269821A (en) | 2016-08-20 | 2016-08-20 | A kind of processing method of corn straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610690675.2A CN106269821A (en) | 2016-08-20 | 2016-08-20 | A kind of processing method of corn straw |
Publications (1)
| Publication Number | Publication Date |
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| CN106269821A true CN106269821A (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610690675.2A Pending CN106269821A (en) | 2016-08-20 | 2016-08-20 | A kind of processing method of corn straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106269821A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127723A (en) * | 2018-12-01 | 2019-01-04 | 黑龙江省农业科学院土壤肥料与环境资源研究所 | Using stalk to the combined remediation method of combined contamination soil |
| CN111482450A (en) * | 2020-04-09 | 2020-08-04 | 尤宝旺 | Layered treatment method for heavy metals in soil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529632A (en) * | 2001-07-17 | 2004-09-15 | ��֪ά | Changing of hydrophilic/hydrophobic characteristics of natural organic substances in oxidation thermo-chemical drying course |
| CN102976807A (en) * | 2012-11-30 | 2013-03-20 | 张有聪 | Mobile fermentation method for producing concentrated fertilizer through humic acid |
| CN105860977A (en) * | 2014-10-21 | 2016-08-17 | 苗庆龄 | Soil remediation agent for treating heavy metal contaminated soil |
-
2016
- 2016-08-20 CN CN201610690675.2A patent/CN106269821A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529632A (en) * | 2001-07-17 | 2004-09-15 | ��֪ά | Changing of hydrophilic/hydrophobic characteristics of natural organic substances in oxidation thermo-chemical drying course |
| CN102976807A (en) * | 2012-11-30 | 2013-03-20 | 张有聪 | Mobile fermentation method for producing concentrated fertilizer through humic acid |
| CN105860977A (en) * | 2014-10-21 | 2016-08-17 | 苗庆龄 | Soil remediation agent for treating heavy metal contaminated soil |
Non-Patent Citations (4)
| Title |
|---|
| 尹华，黄富荣，彭辉 等: "红螺菌R-04吸附多种重金属的研究", 《环境污染治理技术与设备》 * |
| 张乃明 等: "《环境土壤学》", 31 January 2013, 中国农业大学出版社 * |
| 张玉龙: "《农业环境保护》", 31 July 2004 * |
| 张秀霞 等: "微生物固定化载体的选择及其性能", 《化工进展》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127723A (en) * | 2018-12-01 | 2019-01-04 | 黑龙江省农业科学院土壤肥料与环境资源研究所 | Using stalk to the combined remediation method of combined contamination soil |
| CN111482450A (en) * | 2020-04-09 | 2020-08-04 | 尤宝旺 | Layered treatment method for heavy metals in soil |
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Application publication date: 20170104 |